Clasp



C. G. HULTMAN AND H. WACHENHEIMER.

CLASP.

APPLICATION FILED FEB. 2, 1920 1,342,048; I Patented June 1, 1920.

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CHARLES'G. HULT'MAN, or crtA'NsroN, Ann HARRY WACHENHEIMER, or PROVI- IDENGE, RI-IOZDE ISLAND, nssI'e-nozas TO VIACI-IENHEIMER Bnos'. vI1\Tc.; or rnovi- IDENCE,- RrroDnrsLANDfA CORPORATION or Rrronn ISLAND.

CLASP.

Application filed' February 2, 1920. serial no; 355,677.

To allwlwm it may concern: Be it known that we, CHARLES .G; Horr- MAN and HARRY WACHENHEIMERyGlGlZGIlS of Rhode Island, have invented certain new and useful Improvements in Clasps, of which the following is a specification.

This invention relates to olasps more particularly adapted for womens use upon lingerie, but which may be employed for fastening other articles of apparel; and this invention has for its object to provide such a clasp having a pair of resilient, cooperating, opposing arms with their free ends adapted to releasably interlock one with the other; one of said arms being provided with inturned, stiffening edge-flanges provided with teeth or projections for biting the fabric against the opposite arm to securely hold the same from being displaced.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described, and particularly pointed out in the appended claim.

In the accompanying drawings:

Figure 1 is a side elevation of our improved clasp.

Fig. 2 is a bottom View of the clasp, showing one arm as being narrower than the opposite arm due to the turning inwardly of its edges.

Fig. 3 shows a portion of the strip of metal from which the arms are formed and illustrates the shape of the teeth or corrugations formed on the edge of the strip before being turned inwardly, the dotted lines indicating the line of bend.

Fig. 4-.- is a perspective view of our improved clasp.

Fig. 5 is a section on llne 55 of Flg. 1, showing the outer arm as being crowned and the lower arm as provided with inturned flanges.

Our improved claspis preefrably formed of a narrow strip 10 of sheet metal folded upon'itself at 11 forming two cooperating, oppositely-disposed arms 12 and 13, the free ends of which arms are rounded or bent toward each other, whereby they are caused to overlap one another as at 14, thereby Specification ofIiett'ersPatent.

Patented Juiiei; 1920.

snapped 'one over the other.

K011631015 the features of this invention is the United States, and residents of the cities ofzfir'anston sand Providence; respectively,

in the county of ProVidenceand State of.

the turning inward ofathe: opposite edges of the lower arm' 13, and corrugating these edges at ire-which corrugations, 'as 'will be noted 1n F 1g. 3, are formed w1th1n the origlnal straight margins of the strip by which construction it will be seen that no extra site or upper arm 12, to prevent displacement.

It will be noted that by turningup the opposite edges of this arm we provide an arm formed into a groove or trough shape into which groove or trough the fabric is pressed between the flanges thereby effect" ing a firm holding and retaining action upon the fabric. 7 r V In some cases we preferably also round or crown the upper arm, as illustrated in Fig. 5, so as to likewise stiffen this arm to correspond in a measure to the stiffness of the lower arm whereby the stock, from which the device is formed may be made very thin and the device may yet be extremely light in weight and resist undue bending or yielding while the fabric is gripped between them, the only yielding or bending action of the device being at the fold or joint 11 where the stock is not crowned or flanged.

By our improved construction a number of important advantages are secured over the ordinary clasp of this construction; first by turning inwardly the side edges of the arm 13 and the crowning of the arm 12 the stock is stiffened against bending and therefore may be formed of much lighter stock than would be the case where plain arms are employed; second, by constructing these arms in this way they may be made much cheaper as the stock is thinner than is used in the ordinary construction which 7 is of advantage particularly when constructed of precious metals;'third by making the stock thinner the device presents a more delicate and attractive appearance and yet posseses the maximum strength; and

fourth the lower arm is formed in trough shape with inturned corrugated biting V edges, which form of edge serves to positively engage the fabric held between the arms to prevent displacement.

This device is by its particular construction, extremely handsome and attractive in appearance and is effective in its action.

The foregolng description is dlrected solely toward the construction illustrated,

but we desire it to be understood that we reserve the privilege of resorting to all the operating arms of thin resilient material 7 having their ends formed to releasably interlock one with the'other, one of said arms being reduced in width for a portion 7 of its length with inwardly-turned stiffen ing flanges having notched edges for biting the fabric against said opposite arm.

In testimony whereof we affix our signatures.

GHAR-LESG. HULTMAN. HARRY WACHENHEIMER. 

